Method and apparatus for employee access to a gaming system

ABSTRACT

Certain embodiments of the present invention provide a radio frequency identification system and method for facilitating access to a gaming environment. Certain embodiments include an employee identification device transmitting an identification signal in response to an interrogation signal, a gaming system including gaming functions and administrative functions, and a reader positioned with respect to the gaming system transmitting an interrogation signal and receiving the identification signal for access to the gaming system. The employee identification device may include a radio frequency identification (RFID) device, for example. The reader may include an RFID reader, for example. The gaming system may also prompt for at least one of a pass code and biometric identification for access to the gaming machine. In an embodiment, the reader facilitates an end to access to the gaming system after an interval without receiving an identification signal.

BACKGROUND OF THE INVENTION

The present invention generally relates to a gaming system. Inparticular, the present invention relates to an improved employeeidentification device for a gaming system.

Gaming workstations, such as a jackpot and fill workstation or othercontrol or administrative gaming station, are typically found in casinosor other gaming environments. Gaming workstations may be located on acasino floor, for example, and behind the scenes in a control room oradministrative area, for example. Gaming workstations help manage,maintain, and/or upgrade gaming machines and other systems in the gamingenvironment. Employees often access gaming workstations for tasks suchas checking gaming machine status, player tracking, jackpotnotification, inputting and retrieving other information, etc.

Current workstations require manual log in and log out by employees.Employees often remain “logged in” at a gaming workstation and leave theworkstation unattended. Unattended, “logged in” workstations represent asignificant security risk in a gaming environment. Thus, a system forimproved secure access to gaming workstations would be highly desirable.

Additionally, certain gaming systems such as servers or workstationscontaining particularly sensitive data such as binary game images or thelike may require a higher level of security than that afforded byauthorizing the access of a single employee. Thus, a system for ensuringthat more than one employee is present at the gaming system prior toauthorizing access to the gaming system would be highly desirable.

Gaming machines, such as slot machines, fruit machines, or pokermachines, have in recent years become one of the more popular, exciting,and sophisticated wagering activities available at casinos and othergambling locations. At the same time, gaming machines have also become asource of greater revenue for gaming establishments. Thus, competitionbetween manufacturers of gaming machines has intensified as competitorsvie for business from gaming establishments.

A gaming machine providing entertaining and enticing features forplayers would be highly desirable to attract both new and returningplayers to a gaming establishment. Additionally, a gaming machine thatallows customization and dynamic modification by an operator would behighly desirable to provide new features to customers.

Current gaming machines are difficult to reconfigure and offer the samegame to multiple users at multiple gaming establishments. Changing agaming machine or system to a different game or format involvestime-consuming and difficult procedures by an operator.

Additionally, configuration of a gaming machine or workstation by anoperator raises concerns regarding security of data and integrity of thegaming machine or workstation. That is, gaming establishments and legalauthorities place high priority on the integrity of a game, such as aslot or poker game. Thus, there is a need for a gaming system thatallows configurability and reparability while maintaining a secureenvironment.

Furthermore, repairs to a gaming machine, workstation or other gamingsystem are often time-consuming. Certain repairs may involve removing amachine from circulation in a casino. Removing a gaming system fromoperation negatively impacts operation of the casino and may discouragepatrons. Thus, a system for improved repair or maintenance of a gamingsystem would be highly desirable.

Thus, there is a need for an improved employee identification device fora gaming system that allows a casino employee secure access to thegaming system.

BRIEF SUMMARY OF THE INVENTION

Certain embodiments of the present invention provide a system and methodfor improved access in a gaming environment. Certain embodiments of asystem include a radio frequency identification (RFID) readertransmitting an interrogation signal within an area, and a RFID tagreceiving the interrogation signal and transmitting a response signal tothe RFID reader. The RFID reader facilitates authorization for access ina gaming environment based on the response signal.

In an embodiment, the system further includes a database for verifyingthe response signal to authorize access in the gaming environment. Thesystem may also include a gaming system associated with the RFID reader,wherein the RFID reader facilitates access to the gaming system usingthe RFID tag. In an embodiment, the gaming system prompts a user for apass code and/or biometric identification for access to the gamingsystem. In an embodiment, the gaming system requires a plurality of RFIDtags and associated pass codes and/or biometric identification foraccess to the gaming system.

In an embodiment, the RFID reader facilitates disabling the access aftera certain interval with an absence of the RFID tag or tags authorizingaccess. The RFID reader may poll for a presence of the RFID tag, forexample. The RFID reader may facilitate access to the gaming environmentby a plurality of users using a plurality of RFID tags. In anembodiment, the RFID reader facilitates access to administrativefunctions in the gaming environment based on the RFID tag.

Certain embodiments of a radio frequency identification system forfacilitating access to a gaming environment include an employeeidentification device transmitting an identification signal in responseto an interrogation signal, a gaming system including gaming functionsand administrative functions, and a reader positioned with respect tothe gaming system transmitting an interrogation signal and receiving theidentification signal for access to the gaming system. The employeeidentification device may include an RFID device, for example. Thereader may include an RFID reader, for example.

In another embodiment the employee identification device may be active,i.e. powered, to periodically transmit a unique identification signal tothe reader.

In an embodiment, the system further includes a central authority forverifying the response signal to authorize access to the gaming system.The gaming system may also prompt for at least one of a password/passcode and biometric identification for access to the gaming system. Thegaming system may also require that more than one employee be presentfor access to the gaming system. The reader may facilitate authorizationfor access to administrative functions, such as supervisory andmaintenance functions, at the gaming system. In an embodiment, thereader facilitates an end to access to the gaming system after aninterval without receiving an identification signal.

Certain embodiments of a method for allowing access in a gamingenvironment include transmitting an interrogation signal, generating anidentification signal in response to the interrogation signal,authorizing access to a gaming system based on the identificationsignal, and maintaining access to the gaming system based on theidentification signal. In an embodiment, the interrogation signal is aradio frequency interrogation signal and the identification signal is aradio frequency identification signal. The method may also includeobtaining a pass code and/or biometric identification for access to thegaming system. The method may also require more than one employee foraccess to the gaming system such as providing a witness, verification orsecurity. The method may further include authorizing access toadministrative functions at the gaming system. In an embodiment, accessto the gaming system is terminated after an interval without receivingan identification signal.

Certain embodiments of the present invention include a system in agaming environment of the type including a plurality of gaming terminalsat which players may engage in gaming activity, at least one centralprocessor linked to the terminals to receive, store and download datarelated to the operation of the terminal and/or the player and at leastone workstation located remote from and linked to the central processorfor communication therewith. The system includes an electromagneticsignal transmitter in possession of a person authorized to operate theworkstation to communicate with the central processor, whereelectromagnetic signal is configured to be unique for each authorizedperson. The system also includes a receiver to receive anelectromagnetic signal from a transmitter when an authorized person isproximate the workstation. The system further includes an interface forthe person to input authorization data of at least one of a password anddata corresponding to a unique biometric feature of the person, one ofthe central processor and workstation configured to, from theelectromagnetic signal and input of one of the password and datacorresponding to a unique biometric feature of the person, authorize theperson to have access to the central processor. The system includes atransceiver for periodically transmitting the signal to confirm that theauthorized person remains proximate the workstation. Additionally, thesystem includes a central processor configured to terminateauthorization upon the failure to confirm that the authorized personremains proximate the workstation.

In an embodiment, the receiver and the transceiver comprise a singletransceiver. In an embodiment, the electromagnetic signal transmitter isa transponding tag in possession of the person and the receiver isconfigured to include means for periodically issuing an interrogationsignal, where the tag is configured to send the electromagnetic signalin response to the interrogation signal. The tag may include machinereadable data corresponding to the password, and the workstation mayinclude a machine to read the data to authorize the person to haveaccess to the central processor. The workstation may include a biometricinput device for the person to input biometric data. In an embodiment,one of the workstation or host processor configured to, from theelectromagnetic signal and input of one of the password or datacorresponding to a unique biometric feature of the person, authorize aplurality of persons to have common access to the central processor,wherein the transceiver periodically transmits the signal to confirmthat the authorized persons remain proximate the workstation, andwherein the central processor is configured to terminate authorizationupon the failure to confirm that any confirmed authorized person remainsproximate the workstation.

BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 illustrates an improved casino network system used in accordancewith an embodiment of the present invention.

FIG. 2 illustrates a flow diagram for a method for improved access to agaming system in accordance with an embodiment of the present invention.

The foregoing summary, as well as the following detailed description ofcertain embodiments of the present invention, will be better understoodwhen read in conjunction with the appended drawings. For the purpose ofillustrating the invention, certain embodiments are shown in thedrawings. It should be understood, however, that the present inventionis not limited to the arrangements and instrumentality shown in theattached drawings.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 illustrates a casino network system 100 used in accordance withan embodiment of the present invention. The system 100 includes acentral authority 110, a gaming system 120, an RFID reader 130, and anemployee identification device 140. The casino network system 100 mayinclude a plurality of gaming systems 120, readers 130, andidentification devices 140.

The components of the system 100 are connected via a wired and/orwireless network. The RFID reader 130 transmits an interrogation signalto the identification device 140. The interrogation signal may be aradio frequency signal, an electromagnetic signal, a microwave signal,an infrared signal, or other communication signal, for example. Thereader 130 is connected to the gaming system 120 and transmits data tothe gaming system 120. The reader 130 may be separate from or integratedwith the gaming system 120. For example, the reader 130 may be part of agaming machine console or positioned on or adjacent to a gaming machineor gaming system. As another example, the reader 130 may be integratedinto a button, handle, or other components of a gaming machine, forexample. The gaming system 120 is in network communication with thecentral authority 110. The network may be a dedicated network, a localarea network, and/or a wide area network. The network may be a wired orwireless network. The central authority 110 may be integrated with orseparate from the gaming system 120. The components of the system 100may communicate using standard protocols.

The central authority 110 is a server or other computer system providingservices and/or storage to the system 100. The central authority 110 mayprovide a number of different services, including accounting services,player tracking services, progressive game services, browsing services,cashless play services, etc. The applications may be written in variouslanguages including, for example, C#, Java, or SQL. The operating systemfor example, is a Windows® brand operating system or UNIX-based systemwhich provides conventional functions.

Central authority 110 may also transmit information to varioussubscribers including gaming system 120. For example, gaming system 120may subscribe to a “bonus time” alert. Central authority 110 notifiesgaming systems that have subscribed that a bonus period has started andthat jackpots are to be paid out at twice the pay table, for example.The central authority 110 may provide such a bonus service in real timewith the bonus event, or provide a scheduled command for future bonusevents. The central authority 110 may also broadcast an end of a bonusevent or tournament, for example.

Central authority 110 includes a plurality of functions that may becalled by other systems or devices in network communication with thecentral authority 110. Such functions include conventional method orfunction calls as well as remote calls, e.g., proxy and simple objectaccess protocol (SOAP)/extensible markup language (XML) invocations.

Central authority 110 may also provide data to or retrieve data from adatabase. For example, data is stored as to gaming activity, playeraccount information, advertisements, ticketing, etc. For example, meterdata is received by central authority 110. Central authority 110 storesthe meter data in a database. Also, data is retrieved including playerinformation, accounting data, application programs, etc.

The gaming system 120 is an electronic gaming machine, an accessworkstation, a jackpot and fill workstation, a control workstation, datainput and display device, cash register, a gaming terminal, a gamingdevice, or other gaming system, for example, referred to collectivelyherein as a gaming system 120. The gaming system 120 may be used toallow a customer or casino patron to play a game, such as a slot machinegame, video poker game, or other game. The gaming system 120 may also beused for casino management, player/employee tracking or loyalty, food orbeverage service, security, and/or accounting, for example.

The gaming system 120 and other gaming systems communicate with thecentral authority 110 via a network. Data is transmitted over thenetwork between the gaming systems and central authority 110, which isformed of one or more computers. Each gaming system may include a smartcommunications interface (SCI) for control of communications over thenetwork. Central authority 110 may store game output data (received fromthe gaming systems) and may store game input data (to be sent to thegaming systems) in a central database.

In an embodiment, a gaming system 120, such as an electronic gamingmachine, includes a housing that supports a number of componentsincluding a main display which is positioned on the outer front face ofthe gaming system 120 for direct presentation of a display to theplayer. An input area receives a wager from the player in the form ofcurrency bills or bar-coded vouchers. A card receiving slot ispositioned to receive a player or employee card to identify theparticular person at the gaming system, as described hereinafter. Asecondary display also may be included, for the display of supplementalnon-game information to the player, typically, in the form ofinstructions, points balances, or other information. An employee mayview game configuration or maintenance information, for example, on thesecondary display. As understood, all or part of supplemental displaymay take the form of a display window located on primary display or asecondary window on display.

A keypad is provided to allow the player or employee to input data tothe SCI of the gaming system, particularly in response to instructionsor questions on supplemental display. In addition, a plurality ofdecision-making buttons are used by the player to play the game machine.A payout tray provides an area for redemption of awards based on play ofthe game, and a printer may be used to print tickets or other redemptiondocuments.

The gaming system 120 may include a number of peripheral devicesincluding, for example, a card reader and key pad. The card reader andkey pad may be used to identify a player or employee at the gamingsystem 120. A casino issues a player a player card through anapplication process. The player card typically includes a magnetic stripthat is encoded with data to identify the player. In some cases, apersonal identification number (PIN) is given to the player forsecurity, and may allow access to certain features of the gamingmachine. The card is readable by a card reader found in a gamingmachine, workstation or other gaming system. Other types of cards may beutilized including optical cards, smart cards, RFID devices, biometricdevices, etc.

In addition, a unique number or symbol may be encoded onto a magneticstripe, barcode, or other indicator carried by the card. This uniquenumber or symbol corresponds to a player account file which ismaintained by central authority 110 in a database. The account file mayinclude information such as the player's name, address, amount of creditavailable, amount of promotional credits, amount of loyalty points, etc.

Employees of a gaming establishment, such as a casino, may have employeecards that are insertable into a gaming workstation or other gamingsystem or otherwise scanable or readable by a gaming workstation orother gaming system. The employee card may include a magnetic strip thatis read upon insertion to alert an SCI that an employee is present atthe gaming system. The card may also include a RFID transmitter thattransmits a signal in response to the reader 130. If an employee isverified, then particular functions of the gaming system (or SCI) aremade available to the employee.

In an embodiment, when an employee card is inserted into a reader orscanned by the reader 130, SCI recognizes the card as an employee card.Employee menus or options, such as a supervisory mode or a maintenancemode, are then displayed on a display at the gaming system, such as thegaming system 120.

An RFID device, such as the RFID reader 130, uses radio waves,electromagnetic waves, or other wireless communication, for example, toidentify an item, such as the employee identification device 140. Forexample, the employee identification device 140 may be a card includinga microchip with a coiled antenna. The microchip in device 140 maycomprise a fixed, read-only memory or a variable, read-write memorycapable of storing new data transmitted by reader 130, for example. Thecard may be an employee card, a floor card, a mechanic card, a metercomparison card, a currency card, a player card, or other card, forexample. The identification device 140 may also be a ring, a bracelet, anecklace, or other accessory with an RFID tag, for example. The RFIDreader 130 may also include a microchip with an antenna. The RFID reader130 transmits electromagnetic waves or pulses that form a magnetic fieldwhen the waves combine or “couple” with the antenna at the device 140.

A passive RFID tag at the identification device 140 draws power from themagnetic field and uses the power from the field to power the microchip.An active RFID tag is powered by a battery, for example. The microchipmodulates the waves received from the RFID reader 130 and transmits themodulated waves back to the reader 130. The reader 130 converts thereceived waves into digital data identifying the device 140.

In an embodiment, the microchip at the employee identification device140 stores a serial number or other identification number or code thatidentifies the device 140. The device 140 may also store additionalinformation regarding the device 140 and/or an employee associated withthe device 140. The antenna enables the microchip to transmit theidentification information to the RFID reader 130 through modulatedwaves. Various techniques may be used to avoid interference from otherdevices. The waves may be transmitted back to the reader 130 at the sameor at a different frequency. The reader 130 converts the received wavesinto identification information for processing and/or transmission bythe gaming system 120 and/or the central authority 110.

In operation, for example, an employee wears a badge with an embeddedRFID tag, such as the employee identification device 140. A gamingsystem, such as a gaming system workstation or gaming machine, isequipped with a device, such as the RFID reader 130, to detect thepresence of the employee based on the RFID tag. The reader 130 detectsthe identification device 140 and allows the employee to access thegaming system 120. The reader 130 may automatically allow the employeeto access the gaming system 120 or may require a password, pass code,authentication code, biometric identification, or key, for example, toaccess the gaming system 120. The reader 130 may allow access to certainfeatures of the gaming system 120 based on information from the device140. The biometric information may be a scan of the employee's face,palm, finger tip, eye(s) or the like. In an embodiment, identificationdata may be locally cached or held for a period of time or until acertain event occurs. This serves to minimize unintentionalcommunication of identification codes received by the reader 130 fromemployees simply passing by or standing next to the gaming system 120.The data may be locally stored until, for example, the earlier of (1)the employee inputs the password, code, and/or biometric information tocomplete the authorization of the employee, whereupon the data is sentto the central authority or other system for confirmation; or (2) theexpiration of a time period without the input of the informationindicating that the employee was a passerby, whereupon the data is nottransmitted. Alternatively, the casino floor may be mapped to thecentral authority 110 such that if an employee's tag 140 is identifiedby multiple readers 130 in succession, the central authority determinesthat employee is moving past the gaming systems rather than intending tointerface with a gaming system 120. The mapping feature may be used totrack and store employees' movements for security, time motion analysisand/or other business or security purpose, for example.

After the employee has finished his or her tasks at the gaming system120, the employee may exit or “log out of” the gaming system 120.Alternatively, if the RFID reader 130 does not detect the presence ofthe one or more employee identification device(s) 140 for more than acertain period of time, then the reader 130 may instruct the gamingsystem 120 to automatically end the employee's session at the gamingsystem 120. Alternatively, the reader 130 and/or the gaming system 120may prompt the employee or employees to re-enter a password/pass code,insert or turn a key, or otherwise affirm continuation of the currentemployee session, for example.

In an embodiment, the reader 130 or the gaming system 120 polls theemployee identification device or devices 140 to ensure the presence ofthe device(s) 140 at the gaming system 120. If polling does not detectthe device(s) 140 after an interval or certain number of attempts (forexample, two attempts), then the gaming system 120 may end the employeesession.

In another embodiment, if the reader 130 detects more than one employeeidentification device 140 at the gaming system 120, any of the detectedemployees are allowed to access the system. For example, if twoemployees have been authorized to have access to a workstation at thesame time and one of the authorized employees departs the location (thusresulting in a termination of the responding/transponding signal at thesystem 120), the departed employee will be logged off, and the remainingemployee will remain logged on.

In another embodiment, if more than one employee identification device140 is required for authorized access to the gaming system 120 and thereader 130 detects the required number of employee identificationdevices 140 at the gaming system 120, the employees are allowed toaccess the system 120. For example, if two employees must be present togain access to the system and any one of the authorized employeesdeparts the location resulting in a termination of theresponding/transponding signal, the departed employee as well as theremaining employee will be logged off the gaming system 120. Thisfeature may be applicable in situations where, for example, company orregulatory procedures require a witness or the presence of twoauthorized persons to conduct an operation. In this regard the system,where different employees have different authorization powers, may beconfigured so as to require the presence of two or more persons with therequired authorization levels.

In an embodiment, the identification device 140 and the RFID reader 130may be used, possibly in conjunction with the employee inputting aproper password or other data required to confirm authorization, tounlock doors, access certain areas, read gaming meters, and verifyauthorization, for example. The tags 140 and system 120 may beconfigured to provide for different levels of authorization. Forexample, personnel whose task it is to empty a cash/ticket validator ata gaming machine may only be able to authorize the opening the doorsrequired to gain access to the validator cash/ticket storage bin. Otherpersonnel may be authorized to open the machine in response to a callfor repair; other personnel may have access to pay/record the payment ofjackpots while others may have blanket access.

Authorization levels may be stored at the central authority 110 and/orother authorization system. Authorization level may be determined by arecord in a database, a password or code, biometric data, and/orpresence of one or more RFID tags 140, for example. For example, anemployee may have multiple RFID tags 140. Multiple tags 140 may berequired for the employee to access the gaming system 120, and/ormultiple tags 140 may allow the employee incremental levels of access atthe gaming system 120. Tags 140 may be employee-specific and/ortask-specific, for example. Multiple tags 140 may provide the centralauthority 110 and/or other system with various information identifyingthe individual, an intended task, a level of access, and/or otherinformation, for example. Multiple tags 140 may allow a tag 140 forverification of access to the gaming system 120 as well as another tag140 with read/write capability for storing data from and/or adding datato the system 120, central authority 110, and/or other system, forexample.

FIG. 2 illustrates a flow diagram for a method 200 for improved accessto a gaming system in accordance with an embodiment of the presentinvention. First, at step 210, an RFID reader 130 transmits a signalwithin a certain radius of a gaming system or other location. Forexample, the RFID reader 130 broadcasts electromagnetic waves withinthree feet of a gaming machine. Then, at step 220, a user approaches thegaming system. For example, a casino employee walks up to a gamingmachine.

Next, at step 230, the transmitted signal activates an RFID tag. Forexample, the electromagnetic wave impacts an RFID tag on an employeeidentification badge. At step 240, the RFID tag produces a response. Forexample, the RFID tag on the employee badge modulates the receivedelectromagnetic wave and directs the modulated wave back to the RFIDreader 130.

Then, at step 250, the RFID reader 130 receives the response. Forexample, the RFID reader 130 detects the modulated electromagnetic wave.At step 260, the received response is converted to identification data.For example, the modulated electromagnetic wave is translated into anumber identifying a casino employee.

Next, at step 270, the identification data is verified. For example, theemployee number may be checked against a database of employeeidentification numbers to determine that the number represents a validemployee identification number. Furthermore, the database may include alevel or area of access for the employee to allow verification that anemployee is allowed to access a certain area or level of control, forexample.

Then, at step 280, the employee may access the gaming system. Forexample, the employee initiates a maintenance session and accesses asystem maintenance menu to correct a program at the gaming machine orupgrade the gaming machine. At step 290, access to the system isconcluded. For example, an employee may complete a task and log out ofthe system. Alternatively, the employee may walk away from the machine,and the machine may log out the employee after a certain period of time.In an embodiment, multiple employees may choose to or may be required toaccess a single gaming system according to the method 200.

Thus, certain embodiments allow access without or in addition toinsertion of an access card at a gaming system. Using a badge or otherdevice with an RFID tag, transmitter or receiver, a user's access may beauthenticated without insertion or other physical presentation ofidentification in the gaming system 120 or reader 130. Thus, a playercard may remain inserted at the gaming system 120 while an employeeaccesses features at the gaming system 120 using the identificationdevice 140. Once the employee is done with maintenance or configurationat the gaming system 120, play may continue. Thus, certain embodimentsprovide enhanced security along with increased flexibility at gamingworkstations, electronic gaming machines, and other gaming systems.

While the invention has been described with reference to certainembodiments, it will be understood by those skilled in the art thatvarious changes may be made and equivalents may be substituted withoutdeparting from the scope of the invention. In addition, manymodifications may be made to adapt a particular situation or material tothe teachings of the invention without departing from its scope.Therefore, it is intended that the invention not be limited to theparticular embodiment disclosed, but that the invention will include allembodiments falling within the scope of the appended claims.

1. A system in a gaming environment of the type including a plurality ofgaming terminals at which players may engage in gaming activity, atleast one central processor linked to the terminals to receive, storeand download data related to the operation of the terminal and/or theplayer and at least one workstation located remote from and linked tothe central processor for communication therewith, said systemcomprising: an electromagnetic signal transmitter in possession of aperson authorized to operate the workstation to communicate with thecentral processor, said electromagnetic signal configured to be uniquefor each authorized person; a receiver to receive an electromagneticsignal from a transmitter when an authorized person is proximate theworkstation; an interface for said person to input authorization data ofat least one of a password and data corresponding to a unique biometricfeature of the person, one of said central processor and workstationconfigured to, from the electromagnetic signal and input of one of saidpassword and data corresponding to a unique biometric feature of theperson, authorize said person to have access to said central processor;a transceiver for periodically transmitting said signal to confirm thatsaid authorized person remains proximate the workstation; and saidcentral processor configured to terminate authorization upon the failureto confirm that said authorized person remains proximate theworkstation.
 2. The system of claim 1, wherein said receiver and saidtransceiver comprise a single transceiver.
 3. The system of claim 1,wherein said electromagnetic signal transmitter is a transponding tag inpossession of the person and said receiver is configured to includemeans for periodically issuing an interrogation signal, said tag inresponse to said interrogation signal configured to send saidelectromagnetic signal.
 4. The system of claim 1, wherein said tagincludes machine readable data corresponding to said password and saidworkstation includes a machine to read said data to authorize saidperson to have access to the central processor.
 5. The system of claim1, wherein said workstation includes a biometric input device for saidperson to input biometric data.
 6. The system of claim 1, wherein one ofsaid workstation or host processor configured to, from theelectromagnetic signal and input of one of said password or datacorresponding to a unique biometric feature of the person, authorize aplurality of persons to have common access to said central processor;wherein said transceiver periodically transmits said signal to confirmthat said authorized persons remain proximate the workstation; andwherein said central processor is configured to terminate authorizationupon the failure to confirm that any confirmed authorized person remainsproximate the workstation.